683213667840 has 1120 divisors, whose sum is σ = 2797744790016. Its totient is φ = 158316871680.

The previous prime is 683213667839. The next prime is 683213667847. The reversal of 683213667840 is 48766312386.

It is a super-3 number, since 3×683213667840³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683213667847) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 472157997 + ... + 472159443.

Almost surely, 2^683213667840 is an apocalyptic number.

683213667840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 683213667840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1398872395008).

683213667840 is an abundant number, since it is smaller than the sum of its proper divisors (2114531122176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

683213667840 is a wasteful number, since it uses less digits than its factorization.

683213667840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522 (or 1491 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 683213667840 in words is "six hundred eighty-three billion, two hundred thirteen million, six hundred sixty-seven thousand, eight hundred forty".